{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18868",
    "entityType": "User",
    "nonce": "0xcf064e37f6abd9e5d1db27172c1626b2c4a93191c92a818f6e649319388bc9ef",
    "signature": "0x95efe663edff445f9868a9cc302182280fca378795b6d0b037b509c42af7e04f4e57aed598827c7c4a76495d51801f4dea6f409e2a28dd0f0b71a4fe70b6dbd81b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}